src/Startup.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // MuldeR's Utilities for Qt
   3 // Copyright (C) 2004-2016 LoRd_MuldeR <MuldeR2@GMX.de>
   4 //
   5 // This library is free software; you can redistribute it and/or
   6 // modify it under the terms of the GNU Lesser General Public
   7 // License as published by the Free Software Foundation; either
   8 // version 2.1 of the License, or (at your option) any later version.
   9 //
  10 // This library is distributed in the hope that it will be useful,
  11 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13 // Lesser General Public License for more details.
  14 //
  15 // You should have received a copy of the GNU Lesser General Public
  16 // License along with this library; if not, write to the Free Software
  17 // Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
  18 //
  19 // http://www.gnu.org/licenses/lgpl-2.1.txt
  20 //////////////////////////////////////////////////////////////////////////////////
  21
  22 //MUtils
  23 #include <MUtils/Startup.h>
  24 #include <MUtils/OSSupport.h>
  25 #include <MUtils/Terminal.h>
  26 #include <MUtils/ErrorHandler.h>
  27 #include <MUtils/Registry.h>
  28 #include <MUtils/Exception.h>
  29
  30 //Qt
  31 #include <QApplication>
  32 #include <QMutex>
  33 #include <QStringList>
  34 #include <QLibraryInfo>
  35 #include <QTextCodec>
  36 #include <QImageReader>
  37 #include <QFont>
  38 #include <QMessageBox>
  39 #include <QtPlugin>
  40
  41 //CRT
  42 #include <string.h>
  43
  44 ///////////////////////////////////////////////////////////////////////////////
  45 // Qt Static Initialization
  46 ///////////////////////////////////////////////////////////////////////////////
  47
  48 #ifdef QT_NODLL
  49
  50 #if QT_VERSION < QT_VERSION_CHECK(5,0,0)
  51 Q_IMPORT_PLUGIN(qico)
  52 Q_IMPORT_PLUGIN(qsvg)
  53 #else
  54 Q_IMPORT_PLUGIN(QWindowsIntegrationPlugin)
  55 Q_IMPORT_PLUGIN(QICOPlugin)
  56 #endif
  57
  58 static void doInitializeResources(void)
  59 {
  60         Q_INIT_RESOURCE(MUtilsData);
  61 }
  62
  63 static void doCleanupResources(void)
  64 {
  65         Q_CLEANUP_RESOURCE(MUtilsData);
  66 }
  67
  68 namespace MUtils
  69 {
  70         namespace Startup
  71         {
  72                 namespace Internal
  73                 {
  74                         class ResourceInitializer
  75                         {
  76                         public:
  77                                 ResourceInitializer(void)
  78                                 {
  79                                         doInitializeResources();
  80                                 }
  81
  82                                 ~ResourceInitializer(void)
  83                                 {
  84                                         doCleanupResources();
  85                                 }
  86                         };
  87
  88                         static ResourceInitializer resourceInitializer;
  89                 }
  90         }
  91 }
  92
  93 #endif //QT_NODLL
  94
  95 ///////////////////////////////////////////////////////////////////////////////
  96 // MESSAGE HANDLER
  97 ///////////////////////////////////////////////////////////////////////////////
  98
  99 static void qt_message_handler(QtMsgType type, const char *const msg)
 100 {
 101         if((!msg) || (!(msg[0])))
 102         {
 103                 return;
 104         }
 105
 106         MUtils::Terminal::write(type, msg);
 107
 108         if((type == QtCriticalMsg) || (type == QtFatalMsg))
 109         {
 110                 MUtils::OS::fatal_exit(MUTILS_WCHR(QString::fromUtf8(msg)));
 111         }
 112 }
 113
 114 static bool qt_event_filter(void *message, long *result)
 115 {
 116         return MUtils::OS::handle_os_message(message, result);
 117 }
 118
 119 ///////////////////////////////////////////////////////////////////////////////
 120 // STARTUP FUNCTION
 121 ///////////////////////////////////////////////////////////////////////////////
 122
 123 static int startup_main(int &argc, char **argv, MUtils::Startup::main_function_t *const entry_point, const char* const appName, const bool &debugConsole)
 124 {
 125         qInstallMsgHandler(qt_message_handler);
 126         MUtils::Terminal::setup(argc, argv, appName, MUTILS_DEBUG || debugConsole);
 127         return entry_point(argc, argv);
 128 }
 129
 130 static int startup_helper(int &argc, char **argv, MUtils::Startup::main_function_t *const entry_point, const char* const appName, const bool &debugConsole)
 131 {
 132         int iResult = -1;
 133         try
 134         {
 135                 iResult = startup_main(argc, argv, entry_point, appName, debugConsole);
 136         }
 137         catch(const std::exception &error)
 138         {
 139                 MUTILS_PRINT_ERROR("\nGURU MEDITATION !!!\n\nException error:\n%s\n", error.what());
 140                 MUtils::OS::fatal_exit(L"Unhandeled C++ exception error, application will exit!");
 141         }
 142         catch(...)
 143         {
 144                 MUTILS_PRINT_ERROR("\nGURU MEDITATION !!!\n\nUnknown exception error!\n");
 145                 MUtils::OS::fatal_exit(L"Unhandeled C++ exception error, application will exit!");
 146         }
 147         return iResult;
 148 }
 149
 150 int MUtils::Startup::startup(int &argc, char **argv, main_function_t *const entry_point, const char* const appName, const bool &debugConsole)
 151 {
 152         int iResult = -1;
 153 #if (MUTILS_DEBUG)
 154 #ifdef _MSC_VER
 155         _CrtSetDbgFlag(_CRTDBG_CHECK_ALWAYS_DF || _CrtSetDbgFlag(_CRTDBG_REPORT_FLAG));
 156 #endif //_MSCVER
 157         iResult = startup_main(argc, argv, entry_point, appName, debugConsole);
 158 #else //MUTILS_DEBUG
 159 #ifdef _MSC_VER
 160         __try
 161         {
 162                 MUtils::ErrorHandler::initialize();
 163                 MUtils::OS::check_debugger();
 164                 iResult = startup_helper(argc, argv, entry_point, appName, debugConsole);
 165         }
 166         __except(1)
 167         {
 168                 MUTILS_PRINT_ERROR("\nGURU MEDITATION !!!\n\nUnhandeled structured exception error!\n");
 169                 MUtils::OS::fatal_exit(L"Unhandeled structured exception error, application will exit!");
 170         }
 171 #else //_MSCVER
 172         MUtils::ErrorHandler::initialize();
 173         MUtils::OS::check_debugger();
 174         iResult = startup_helper(argc, argv, entry_point, appName, debugConsole);
 175 #endif //_MSCVER
 176 #endif //MUTILS_DEBUG
 177         return iResult;
 178 }
 179
 180 ///////////////////////////////////////////////////////////////////////////////
 181 // QT INITIALIZATION
 182 ///////////////////////////////////////////////////////////////////////////////
 183
 184 static QMutex g_init_lock;
 185 static const char *const g_imageformats[] = {"bmp", "png", "jpg", "gif", "ico", "xpm", "svg", NULL};
 186
 187 static QString getExecutableName(int &argc, char **argv)
 188 {
 189         if(argc >= 1)
 190         {
 191                 const char *argv0 = argv[0];
 192                 for (int i = 0; i < 2; i++)
 193                 {
 194                         static const char SEP[2] = { '/', '\\' };
 195                         if (const char *const ptr = strrchr(argv0, SEP[i]))
 196                         {
 197                                 argv0 = ptr + 1;
 198                         }
 199                 }
 200                 if(strlen(argv0) > 1)
 201                 {
 202                         return QString::fromLatin1(argv0);
 203                 }
 204         }
 205         return QLatin1String("Program.exe");
 206 }
 207
 208 static void qt_registry_cleanup(void)
 209 {
 210         static const wchar_t *const QT_JUNK_KEY = L"Software\\Trolltech\\OrganizationDefaults";
 211         MUtils::Registry::reg_key_delete(MUtils::Registry::root_user, MUTILS_QSTR(QT_JUNK_KEY), true, true);
 212 }
 213
 214 QApplication *MUtils::Startup::create_qt(int &argc, char **argv, const QString &appName)
 215 {
 216         QMutexLocker lock(&g_init_lock);
 217         const OS::ArgumentMap &arguments = MUtils::OS::arguments();
 218
 219         //Don't initialized again, if done already
 220         if(QApplication::instance() != NULL)
 221         {
 222                 qWarning("Qt is already initialized!");
 223                 return NULL;
 224         }
 225
 226         //Extract executable name from argv[] array
 227         const QString executableName = getExecutableName(argc, argv);
 228
 229         //Check Qt version
 230 #ifdef QT_BUILD_KEY
 231         qDebug("Using Qt v%s [%s], %s, %s", qVersion(), QLibraryInfo::buildDate().toString(Qt::ISODate).toLatin1().constData(), (qSharedBuild() ? "DLL" : "Static"), QLibraryInfo::buildKey().toLatin1().constData());
 232         qDebug("Compiled with Qt v%s [%s], %s\n", QT_VERSION_STR, QT_PACKAGEDATE_STR, QT_BUILD_KEY);
 233         if(_stricmp(qVersion(), QT_VERSION_STR))
 234         {
 235                 qFatal("%s", QApplication::tr("Executable '%1' requires Qt v%2, but found Qt v%3.").arg(executableName, QString::fromLatin1(QT_VERSION_STR), QString::fromLatin1(qVersion())).toLatin1().constData());
 236                 return false;
 237         }
 238         if(QLibraryInfo::buildKey().compare(QString::fromLatin1(QT_BUILD_KEY), Qt::CaseInsensitive))
 239         {
 240                 qFatal("%s", QApplication::tr("Executable '%1' was built for Qt '%2', but found Qt '%3'.").arg(executableName, QString::fromLatin1(QT_BUILD_KEY), QLibraryInfo::buildKey()).toLatin1().constData());
 241                 return false;
 242         }
 243 #else
 244         qDebug("Using Qt v%s [%s], %s", qVersion(), QLibraryInfo::buildDate().toString(Qt::ISODate).toLatin1().constData(), (qSharedBuild() ? "DLL" : "Static"));
 245         qDebug("Compiled with Qt v%s [%s]\n", QT_VERSION_STR, QT_PACKAGEDATE_STR);
 246 #endif
 247
 248         //Check the Windows version
 249         const MUtils::OS::Version::os_version_t &osVersion = MUtils::OS::os_version();
 250         if((osVersion.type != MUtils::OS::Version::OS_WINDOWS) || (osVersion < MUtils::OS::Version::WINDOWS_WINXP))
 251         {
 252                 qFatal("%s", QApplication::tr("Executable '%1' requires Windows XP or later.").arg(executableName).toLatin1().constData());
 253         }
 254
 255         //Check whether we are running on a supported Windows version
 256         if(const char *const friendlyName = MUtils::OS::os_friendly_name(osVersion))
 257         {
 258                 qDebug("Running on %s (NT v%u.%u.%u).\n", friendlyName, osVersion.versionMajor, osVersion.versionMinor, osVersion.versionBuild);
 259         }
 260         else
 261         {
 262                 const QString message = QString().sprintf("Running on an unknown WindowsNT-based system (v%u.%u.%u).", osVersion.versionMajor, osVersion.versionMinor, osVersion.versionBuild);
 263                 qWarning("%s\n", MUTILS_UTF8(message));
 264                 MUtils::OS::system_message_wrn(MUTILS_WCHR(executableName), MUTILS_WCHR(message));
 265         }
 266
 267         //Check for compat mode
 268         if(osVersion.overrideFlag && (osVersion <= MUtils::OS::Version::WINDOWS_WN100))
 269         {
 270                 qWarning("Windows compatibility mode detected!");
 271                 if(!arguments.contains("ignore-compat-mode"))
 272                 {
 273                         qFatal("%s", QApplication::tr("Executable '%1' doesn't support Windows compatibility mode.").arg(executableName).toLatin1().constData());
 274                         return NULL;
 275                 }
 276         }
 277
 278         //Check for Wine
 279         if(MUtils::OS::running_on_wine())
 280         {
 281                 qWarning("It appears we are running under Wine, unexpected things might happen!\n");
 282         }
 283
 284         //Set text Codec for locale
 285         QTextCodec::setCodecForLocale(QTextCodec::codecForName("UTF-8"));
 286
 287         //Create Qt application instance
 288         QApplication *application = new QApplication(argc, argv);
 289
 290         //Register the Qt clean-up function
 291         atexit(qt_registry_cleanup);
 292
 293         //Load plugins from application directory
 294         QCoreApplication::setLibraryPaths(QStringList() << QApplication::applicationDirPath());
 295         qDebug("Library Path:\n%s\n", MUTILS_UTF8(QApplication::libraryPaths().first()));
 296
 297         //Set application properties
 298         application->setApplicationName(appName);
 299         application->setOrganizationName("LoRd_MuldeR");
 300         application->setOrganizationDomain("mulder.at.gg");
 301         application->setEventFilter(qt_event_filter);
 302
 303         //Check for supported image formats
 304         QList<QByteArray> supportedFormats = QImageReader::supportedImageFormats();
 305         for(int i = 0; g_imageformats[i]; i++)
 306         {
 307                 if(!supportedFormats.contains(g_imageformats[i]))
 308                 {
 309                         qFatal("Qt initialization error: QImageIOHandler for '%s' missing!", g_imageformats[i]);
 310                         MUTILS_DELETE(application);
 311                         return NULL;
 312                 }
 313         }
 314
 315         //Setup console icon
 316         MUtils::Terminal::set_icon(QIcon(":/mutils/icons/bug.png"));
 317
 318         //Enable larger/smaller font size
 319         double fontScaleFactor = 1.0;
 320         if(arguments.contains("huge-font" )) fontScaleFactor = 1.500;
 321         if(arguments.contains("big-font"  )) fontScaleFactor = 1.250;
 322         if(arguments.contains("small-font")) fontScaleFactor = 0.875;
 323         if(arguments.contains("tiny-font" )) fontScaleFactor = 0.750;
 324         if(!qFuzzyCompare(fontScaleFactor, 1.0))
 325         {
 326                 qWarning("Application font scale factor set to: %.3f\n", fontScaleFactor);
 327                 QFont appFont = application->font();
 328                 appFont.setPointSizeF(appFont.pointSizeF() * fontScaleFactor);
 329                 application->setFont(appFont);
 330         }
 331
 332         //Check for process elevation
 333         if(MUtils::OS::is_elevated() && (!MUtils::OS::running_on_wine()))
 334         {
 335                 QMessageBox messageBox(QMessageBox::Warning, executableName, "<nobr>This program was started with 'elevated' rights, altough it does not need these rights.<br>Running an applications with unnecessary rights is a potential security risk!</nobr>", QMessageBox::NoButton, NULL, Qt::Dialog | Qt::MSWindowsFixedSizeDialogHint | Qt::WindowStaysOnTopHint);
 336                 messageBox.addButton("Quit Program (Recommended)", QMessageBox::NoRole);
 337                 messageBox.addButton("Ignore", QMessageBox::NoRole);
 338                 if(messageBox.exec() == 0)
 339                 {
 340                         MUTILS_DELETE(application);
 341                         return NULL;
 342                 }
 343         }
 344
 345         //Qt created successfully
 346         return application;
 347 }
 348
 349 ///////////////////////////////////////////////////////////////////////////////
 350